Home / 32,729.78-45,165.38-18,390.18

Finding the Fourth Proportional to 32,729.78, 45,165.38 and 18,390.18

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Solution

The fourth proportional to 32,729.78, 45,165.38 and 18,390.18 is: 25,377.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,729.78 : 45,165.38 = 18,390.18 : x
  2. Step 2: Convert to fraction form
    32,729.78/45,165.38 = 18,390.18/x
  3. Step 3: Cross multiply
    32,729.78x = 45,165.38 × 18,390.18
  4. Step 4: Simplify right side
    32,729.78x = 830,599,513.94
  5. Step 5: Solve for x
    x = 830,599,513.94/32,729.78
  6. Step 6: Final answer
    x = 25,377.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.